"Passive smoking" refers to the act of involuntarily breathing in tobacco smoke from others who are smoking nearby. It is also known as secondhand smoke. Full definition
Researchers looked at the potential effects of passive smoking on newborn death, congenital birth defects and miscarriage. (ahealthblog.com)
However, interestingly, it also suggested for the first time that in smokers, exposure to tobacco early in life through passive smoking in childhood significantly increased this risk. (sciencedaily.com)
As numerous countries have introduced smoking bans in public places, the home has become the main source of passive smoking exposure. (sciencedaily.com)